HELP !! not to sure :///

hello everyone ! So recently I just had unprotected sex with my man but I was on my 4th day on my period . I didn't worry to much that there would be so much blood everywhere . As soon as I told him he didn't care and just said it was my decision if I wanted to do it or not , I didn't mind to much but it was of course having period sex for the first time . Well after we were done there was blood EVERYWHERE ! And I just couldn't believe it . We stopped and he cummed on almost into my vagina but on the side of it . I was just shocked cause it was so much . So the next day we ended up cuddling OF course we all girls are sexually active and ended up doing the do's this time it was so much and it was my 5th day . So now my man says I'm not pregnant but I'm just feeling weird these past days .. I need advice , PLEASE NO RUDE COMMENTS